Exclusive software developed by Spektrum for air RC transmitters that includes all programming functions and features.

A proprietary combination of gyros, sensors, and software that helps to stabilize and control the heading of surface RC models.

A proprietary combination of gyros, sensors, and software that helps to stabilize and control the heading of RC aircraft models.

Programming a receiver to recognize the GUID code of only one specific transmitter or transmitter module.

Refers to the number of devices that you can connect into a receiver and control; also references the frequency a transmitter broadcast on.

A twin antenna setup that makes Dual Link possible.

3rd generation Frequency Hopping Spektrum 2.4 gHz protocol that offers superior radio frequency link security and the ability for over 100 systems to operate interference-free simultaneously.

Spektrum surface "Racing" protocol that delivers reduced latency, superior Radio Frequency link security, and the ability for over 100 systems to operate interference-free simultaneously.

Digital Spectrum Modulation; DSM is the 2.4GHz technology that makes Spektrum possible.

The second generation of Digital Spread Modulation. DSM2 offers significantly reduced latency and a faster response time than any brand of 27, 75, or 72MHz PCM system.

Direct Sequence Spread Spectrum. DSSS broadcasts on the 2.4GHz frequency band and generates a wide signal on a single frequency.

Spektrum designed architecture that provides increased Radio Frequency link diversity. This combined with DSM2 is what makes the full range system possible.

The term used to describe data that does not reach the receiver. Dual Link minimizes this possibility.

A safety feature designed into Spektrum receivers that drives the servo positions to a preset location in the event that signal is lost.

Flight Log is in reference to a screen that reports the signal and reception quality between your Spektrum Transmitter and telemetry capable receiver. This is reported to the user in real-time on compatible Spektrum transmitters.

A function of your transmitter to change flight characteristics with the flip of a switch. This can be customized to control many aspects of flight, such as rates, control mixing and stability modes.

Frequency Hopping Spread Spectrum. These systems usually transmit a narrow band signal and rapidly jump through a fixed set of frequencies, spending a few milliseconds on each frequency.

Spektrum technology that allows the configuration of Smart devices (receivers, etc.) wirelessly and directly from the transmitter. No separate computer or mobile device is needed for setup and adjustments.

The simultaneous loss of information to both antennas in the aircraft system.

The time interval at which the servo data is updated on the receiver.

The specific channel or Radio Frequency spectrum that a radio broadcast on. In a traditional RC radio, the transmission crystal resonates when voltage is applied; the rate of this resonation determines the frequency that is broadcast on.

Typically referred to in gyros, gain is the feedback correction authority used to counteract the rate of motions in a gyro.

Globally Unique Identification Code. Each individual module or radio is factory programmed with its own unique serial code. In the binding process, the receiver is programmed to only recognize the GUID code of one specific radio or module.

In gyros, used to maintain the indented heading or direction of the aircraft or vehicle despite outside influences, wind, round surfaces, etc.

In Spektrum systems, a hold occurs when 45 consecutive Frame losses occur. At this point the system enters failsafe.

The time it takes for a servo or ESC to react to an input made on a radio.

Megahertz. One hertz represents one cycle per second, and a megahertz is 1,000,000 hertz.

A safety feature that prevents a pilot from flying a model when the model selected in the radio is not correct.

Internal memory or capacity available in the transmitters to store different aircraft settings and parameters.

A device that plugs into the back of many radios that determines the broadcast frequency and band.

Back-and-forth movement similar to a vibration that may appear like a wobble. It may occur around any axis, roll, pitch or yaw.

A set or group of data that is sent from an RC transmitter to a receiver in a digital radio system.

One of the most exciting features of SAFE receivers, Panic Recovery will automatically return the aircraft to level flight with the push of a button.

An aircraft device (receiver) with dual battery redundancy to support high-current systems found in giant scale and turbine powered aircraft.

In Gyros Stick priority reduces the amount of gain as the control input (stick) is displaced from center. This gives more control authority as the limits of travel.

Exclusive software developed by Spektrum for surface RC transmitters that includes all programming functions and features.

An important aspect of RC flying success, the Range Check is a ground procedure to test the radio signal from your RC transmitter to the receiver to make sure it is strong and secure. We suggest a Range Check at the beginning of each flight session to confirm the system's operation.

A device mounted into an RC car or aircraft that receives and decodes a signal sent by a transmitter. Servos, ESC, and other devices are plugged into the receiver.

An auxiliary receiver that works in conjunction with a main receiver. These are beneficial in larger aircraft and aircraft that may have Radio Frequency blind spots caused by larger metallic objects such as engines, batteries, or carbon fiber.

The transmission “scheme” that each specific radio manufacturer designs for the brand.

A water/ chemical resistance coating that is applied to the PC (electric) boards that make the electronics highly water resistant.

Refers to the incremental step size of the data transmitted to the receiver.

SAFE technology is an advanced flight assistance system that gives pilots the ability to fly without the worry of crashing due to common mistakes such as orientation loss or over-control. Built upon the successful Spektrum AS3X system, models with SAFE technology have multiple flight modes with progressive flight envelope limitations as well as self-leveling and flight stabilization.

A motorized electronic device used to actuate steering bellcranks, throttle and brake linkages, or control surfaces.

A resequencing of the data the radio transmits based on the type of mixing you select. This feature helps to sync control services that are connected (such as a swash plate on a helicopter) and is used in radios that have many channels.

Designed and developed by Spektrum, Smart Technology employs the latest advancements in connectivity and integration for a hassle-free and more fun RC experience. This is made possible by an integrated microchip that transmits a vast amount of data to Spektrum chargers, ESCs, and transmitters.

SRXL is a single wire serial data protocol developed by Spektrum that allows channel data from SRXL equipped receivers to be transmitted to flight controllers and other accessories.

SRXL2 is a powerful bi-directional communications protocol that improves the speed, security, and richness of data transfer between your radio system and compatible on-board devices such as flight controllers and Smart ESCs. SRXL2 lowers the latency compared to legacy protocols and allows flight controllers to be configured directly from your Spektrum transmitter, without requiring a computer or smart device. You’ll also enjoy more responsive telemetry that can be customized precisely to your needs. And it’s all done over one signal wire! Please note that SRXL2 is not backward compatible with the legacy SRXL and remote receiver protocols. SRXL2 support updates may be required for your device to use SRXL2 receivers.

Provides real time information regarding model parameters (like battery charge condition, speed, radio link condition, etc.) to the pilot or driver typically through the transmitter via on screen information, audio tone, or voice prompts.

Disables throttle function.

Wireless technology that allows devices to exchange data.

Allows wireless buddy box training using two transmitters (instructor and student) typically used to make training easier and safer.

Telemetry Module Protocol that allows for multiple sensors to communicate through one connection. This allows for each sensor to be plugged in from one sensor to the next, in a "Daisy-Chain" fashion.

Utilizing the SRXL protocol, receivers with SRXL can utilize X-Plus to expand the number of allowed channel outputs with a X-Plus Expansion Module. These additional X-Plus Channels communicate at a slower rate and resolution (512ms compared to 1024ms) and are intended for non-control surface functions such as bomb drops, lights, winches, and retractable landing gear.